JP3229112B2 - Construction structure of exterior stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction structure of an exterior staircase, and more particularly to a common staircase in the form of a terrace house on a slope and other large staircases. It relates to the construction structure.

[0002]

2. Description of the Related Art Conventionally, in a terrace house type common staircase or a large external staircase on a slope, a construction structure that has been conventionally implemented generally involves dumping concrete on a slope made of cut soil, and placing an appropriate concrete thereon. A stair formwork is assembled, and various reinforcing bars such as lightning bolts with a continuous mountain shape are arranged along the treads and riser of the stairs. Concrete is poured into this staircase form, and from the treads and riser Form a corrugated floor.
And it is constructed by forming a mortar base on this step floor and attaching a finishing material such as a tile.

[0003]

There are various problems in the construction structure of the above-described external stairs and the like which has been conventionally implemented in terms of construction and the like. In other words, it is necessary to form a stair form to form a corrugated floor, and to arrange various reinforcing bars such as lightning bars, it requires a skilled technician for the construction, and the construction is easy. Not really. In addition, the precision of the concrete surface of the corrugated floor with the formwork dismantled is generally poor, and repair is required to form the mortar base to attach the finishing material. Work is not easy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to the construction of a conventional external staircase, and has as its object to eliminate the necessity of assembling a stair form for forming a step floor. It does not require the rebar arrangement by skilled technicians such as lightning bolts, and does not provide the construction structure of the external staircase that facilitates the work of forming the mortar base for attaching the finishing materials such as tiles. is there.

[0005]

The inventor of the present invention has made intensive studies on the solution of the above-mentioned problems, and as a result, as a means for forming a step floor of an external staircase, a concrete U-shaped groove has been successively formed in steps. Attention was paid to a structure in which concrete is cast in the U-shaped groove to form a step floor including a tread and a riser portion.

That is, according to the present invention, as a means for achieving the above object, a concrete U
The groove is sequentially arranged in a step-like manner and appropriately arranged, concrete is poured into the U-shaped groove to form a step floor including a tread and a riser portion, and a mortar base is formed on the step floor. It is a construction structure of an external staircase consisting of attaching finishing materials.

In the construction structure of the external staircase in the present invention, the step floor is formed by sequentially arranging concrete U-shaped grooves in a stepwise manner. On the stairs and the like, a number of concrete U-shaped grooves are connected side by side. Then, concrete is poured into the U-shaped groove arranged in a step shape to form a step floor including a tread surface and a riser portion.

Next, in the present invention, each stage is made up of a plurality of U
It is composed of a U-shaped groove, with reinforcing bars passing through the inside of the U-shaped groove, and reinforcing bars for constructing handrails at both ends of the U-shaped groove, placing concrete and placing each step. One single unit. Then, as described above, when a plurality of concrete U-shaped grooves are continuously provided for each step and are sequentially arranged in a step-like manner to form a step floor, a joint portion of the U-shaped groove of each step is formed. It is preferable to place concrete by arranging oblique streaks that pass between the steps through the concrete. Further, concrete is poured into each concrete U-shaped groove to form a stepped floor including a tread and a riser portion, and then the tread and the like are finished using a trowel to attach a finishing material such as a tile.

[0009]

The construction structure of the external staircase according to the present invention is such that concrete U-shaped grooves are sequentially arranged in a step-like manner, concrete is cast in the U-shaped grooves, and a step floor including a tread surface and a riser portion. Therefore, there is no need to form a staircase formwork for forming a step floor, and it can be easily constructed only by an external construction work.

[0010] Reinforcing bars passing through the inside of the U-shaped groove are arranged, and reinforcing bars for constructing handrails are arranged at both ends of the U-shaped groove. Since the concrete is cast by arranging the oblique streaks passing between the steps via the steps, there is no need for a skilled technician such as a lightning bolt. In addition, the work of forming a mortar base for attaching a finishing material such as a tile is easy, and the tread or the like can be easily finished using a trowel without requiring special repair.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIG. 1 is a sectional view showing a construction structure of an external staircase according to the present invention. In this external staircase, abandoned concrete 3 is put on a slope made of cut soil 2, and concrete U-shaped grooves 4, 4 are sequentially arranged on the slope. Concrete is cast in each U-shaped groove provided in each step to form a step floor 1 including a tread surface 4a and a riser portion 4b. And
The tread and the like are finished using a trowel or the like in order to attach a finishing material such as a tile. Each step consists of a plurality of concrete U
The grooves are arranged side by side.
Are oblique bars arranged between the steps through the joints of the U-shaped grooves in each step, and 7 is a reinforcing bar passing through the inside of the U-shaped groove 4. Also, 6 in FIG. 1 indicates a ground level.

Next, FIG. 2 is a front view showing the arrangement of reinforcing bars in the construction structure of the external staircase according to the present invention. That is, each step is constituted by connecting a plurality of U-shaped grooves 4 and 4 in a row, reinforcing bars 7 passing through the insides of the U-shaped grooves, and constructing handrails at both ends of the U-shaped groove 4. Reinforcing bars 8 are arranged. Then, concrete is poured into the U-shaped groove 4 to make each step one unit. Further, as described above, when a large number of concrete U-shaped grooves are continuously provided for each step and are sequentially arranged in a step-like manner to form a step floor, a joint portion of the U-shaped groove of each step is formed. The concrete is laid by arranging the oblique streaks 5 passing between the steps via 9. By laying concrete in the U-shaped groove as the reinforcing arrangement as described above, the structure of the stairs is firmly integrated, and there is no need for the arrangement of lightning bolts by a skilled technician as in the prior art. .

[0013]

According to the construction structure of the external staircase according to the present invention, concrete U-shaped grooves are sequentially arranged in a step-like manner, and reinforcement is appropriately arranged, and concrete is poured into the U-shaped grooves to provide treads. And a stepped floor consisting of a riser portion, and a structure in which a mortar base is formed on the stepped floor and a finishing material is attached, but according to the present invention, (1) concrete U-shaped grooves are sequentially formed. Since it is arranged in a staircase and forms a step floor consisting of a tread and a riser, there is no need to form a stair formwork for forming the step floor, and it can be easily constructed only by external construction work. . (2) Reinforcing bars passing through the inside of the U-shaped groove, reinforcing bars for constructing handrails at both ends of the U-shaped groove, and oblique bars passing between the steps through the joints of the U-shaped grooves in each step are arranged. Since the concrete is laid in a straight line, the structure of the stairs is firmly integrated without arranging the reinforcement by a skilled technician such as a lightning bolt. (3) The work of forming a mortar base for attaching a finishing material such as a tile is easy, and treads and the like can be easily finished using a trowel without special repair. (4) Further, when the number of steps is large, concrete can be poured into each step and the construction can be performed, so that the construction can be performed sequentially at a later date and time.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a construction structure of an external staircase according to the present invention.

FIG. 2 is a front view showing the arrangement of reinforcing bars in the construction structure of the external staircase according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Step floor 2 Cut soil 3 Discarded concrete 4 U-shaped groove 4a Tread surface 4b Kick-up part 5 Slopes 6 Ground level 7 Reinforcing bar in U-shaped groove 8 Reinforcing bar rail construction 9 Joint of U-shaped groove

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuo Ube 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. Tokyo Branch (72) Inventor Eiji Yamashita 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Tokyo Branch (56) References JP-A-52-45106 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04F 11/02-11/14 E01C 1/00 -17/00 E02B 3/04-3/14 303

Claims (3)

(57) [Claims] In the structure of an external staircase, concrete U-shaped grooves are sequentially arranged in a step-like manner, and reinforcing bars are appropriately arranged, and concrete is poured into the U-shaped grooves to form a tread surface and a riser portion. An external staircase construction structure wherein a step floor is formed, a mortar base is formed on the step floor, and a finishing material is attached. 2. Each step is constituted by a plurality of U-shaped grooves, reinforcing bars passing through the inside of the U-shaped grooves are arranged, and reinforcing bars for constructing handrails are arranged at both ends of the U-shaped grooves. The construction structure for an external staircase according to claim 1, wherein: 3. The step according to claim 1, wherein each step is constituted by a plurality of U-shaped grooves, and oblique streaks are passed between the steps through joints of the U-shaped grooves. Construction structure of exterior stairs.